cucumber - making bdd fun

by

Intekhab Sadekin

CUCUMBER – Making BDD Fun

Question: One of main constituents of a salad?

Answer: SURE!!!

But that’s not what we are here for!!!

What is Cucumber?

Behavior Driven Development and testing tool

Bunch of behaviors in the form of scenariosWritten mainly by non-technical peopleWritten in plain english

What is Cucumber actually?

Write a behavior in the form of scenario in a feature file

Write the code in order to satisfy the scenario(the actual application and not the automation script)

Run the feature fileWatch it failWrite the automation script with the template

provided by cucumberThe behavior of the application is satisfied by

the test script

What should you actually do?

I am sorry but I am not going to discuss

the merits and demerits of BDD

Behavior Driven Development?

Project root/Features

fileName1.featurefileName2.featureSupport

Env.rbStep_definitions

fileName1.rbfileName2.rb

Directory structure

Feature: TitleAs a [role]I want [feature]So that [benefit]

Scenario: TitleGiven [context]When [event]And [more event]Then [outcome]And [another outcome]

Lets get straight to it!!!

What the @#$% !!!

Feature: LoginAs an adminI want be able to login with my credentialsSo that I get to the home page

Scenario: Able to successfully loginGiven that I am on page

“http://www.blahblah.com”When I provide my username “admin”And I provide my password “admin”Then I should be at “HomePage”

Example

Develop the application driven by the behavior described earlier in the feature file

Develop!!!

$ cucumber login.feature

RUN the damn thing….

Run and watch it fail…

A template provided in order to write the automation script

Given /^I am on "([^\"]*)"$/ do |url|

pending

end

When /^I enter username "([^\"]*)"$/ do |userName|

pending

end

When /^I enter password "([^\"]*)"$/ do |password|

pending

end

When /^I click the button with name "([^\"]*)"$/ do |buttonValue|

pending

end

Then /^I should be at "([^\"]*)"$/ do |url| pending

end

What should I do?

They are called step definitionsEssentially bunch of ruby codeA library called Watir is used for the API

What was that?

Run it again….

What next….

Watch it fail again…

Given /^I am on "([^\"]*)"$/ do |url|

@browser.goto(url)

end

When /^I enter username "([^\"]*)"$/ do |userName|

pending

end

When /^I enter password "([^\"]*)"$/ do |password|

pending

end

When /^I click the button with name "([^\"]*)"$/ do |buttonValue|

pending

end

Then /^I should be at "([^\"]*)"$/ do |url| pending

end

Make the necessary changes

Go back to step definitions and write the script in order to satisfy the behavior

Keep on running the feature file until all of

them turns green like a Cucumber

?Thank You!!!